In my second game, it was a bit hard to find a move that didn't kill Safer Sephiroth in one hit. Half of the limit breaks and Knights of the Round would kill him right away, and even three 4x Cuts would get him killed right away. However, I prefer not to beat Safer Sephiroth too quickly. As some people have said already, Super Nova is definitely worth seeing, and I also love the final battle theme, One-Winged Angel.